Cart retainer



FIG. 1 is a perspective view of a cart retainer showing my new design;

FIG. 2 is an end plan view of thereof;

FIG. 3 is a side plan view thereof;

FIG. 4 is a fragmentary portion of the end plan view on an enlarged scale of the circumscribed region 4 of FIG. 2;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a top view thereof with carts retained therein.

The carts shown in FIG. 7 are included to illustrate an associated environment and form no part of the claimed invention. 

The ornamental design for a cart retainer, as shown and described. 